diff --git a/test/language/expressions/class/syntax/early-error/grammar-static-async-gen-meth-prototype.js b/test/language/expressions/class/syntax/early-error/grammar-static-async-gen-meth-prototype.js
new file mode 100644
index 0000000000..18991777c1
--- /dev/null
+++ b/test/language/expressions/class/syntax/early-error/grammar-static-async-gen-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-gen-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Generator Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+var C = class {
+  static async * prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/early-error/grammar-static-async-meth-prototype.js b/test/language/expressions/class/syntax/early-error/grammar-static-async-meth-prototype.js
new file mode 100644
index 0000000000..f0882842a1
--- /dev/null
+++ b/test/language/expressions/class/syntax/early-error/grammar-static-async-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Async Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+var C = class {
+  static async prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/early-error/grammar-static-gen-meth-prototype.js b/test/language/expressions/class/syntax/early-error/grammar-static-gen-meth-prototype.js
new file mode 100644
index 0000000000..f4b4e6e779
--- /dev/null
+++ b/test/language/expressions/class/syntax/early-error/grammar-static-gen-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-gen-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Generator Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+var C = class {
+  static * prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/early-error/grammar-static-get-meth-prototype.js b/test/language/expressions/class/syntax/early-error/grammar-static-get-meth-prototype.js
new file mode 100644
index 0000000000..0c060817b1
--- /dev/null
+++ b/test/language/expressions/class/syntax/early-error/grammar-static-get-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-get-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Accessor get Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+var C = class {
+  static get prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/early-error/grammar-static-meth-prototype.js b/test/language/expressions/class/syntax/early-error/grammar-static-meth-prototype.js
new file mode 100644
index 0000000000..40263c6799
--- /dev/null
+++ b/test/language/expressions/class/syntax/early-error/grammar-static-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+var C = class {
+  static prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/early-error/grammar-static-set-meth-prototype.js b/test/language/expressions/class/syntax/early-error/grammar-static-set-meth-prototype.js
new file mode 100644
index 0000000000..0e675f4a87
--- /dev/null
+++ b/test/language/expressions/class/syntax/early-error/grammar-static-set-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-set-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-expr-elements-invalid-syntax.template
+/*---
+description: Static Accessor set Methods cannot be named prototype (class expression)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+var C = class {
+  static set prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/valid/grammar-static-private-async-gen-meth-prototype.js b/test/language/expressions/class/syntax/valid/grammar-static-private-async-gen-meth-prototype.js
new file mode 100644
index 0000000000..1f19d0ef4b
--- /dev/null
+++ b/test/language/expressions/class/syntax/valid/grammar-static-private-async-gen-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-gen-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Async Generator Private Methods can be named prototype (class expression)
+esid: prod-ClassElement
+features: [async-iteration, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static async * #prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/valid/grammar-static-private-async-meth-prototype.js b/test/language/expressions/class/syntax/valid/grammar-static-private-async-meth-prototype.js
new file mode 100644
index 0000000000..d8a3023b95
--- /dev/null
+++ b/test/language/expressions/class/syntax/valid/grammar-static-private-async-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Async Private Methods can be named prototype (class expression)
+esid: prod-ClassElement
+features: [async-functions, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static async #prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/valid/grammar-static-private-gen-meth-prototype.js b/test/language/expressions/class/syntax/valid/grammar-static-private-gen-meth-prototype.js
new file mode 100644
index 0000000000..22e6f62cdb
--- /dev/null
+++ b/test/language/expressions/class/syntax/valid/grammar-static-private-gen-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-gen-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Generator Private Methods can be named prototype (class expression)
+esid: prod-ClassElement
+features: [generators, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static * #prototype() {}
+};
diff --git a/test/language/expressions/class/syntax/valid/grammar-static-private-meth-prototype.js b/test/language/expressions/class/syntax/valid/grammar-static-private-meth-prototype.js
new file mode 100644
index 0000000000..186104cf2b
--- /dev/null
+++ b/test/language/expressions/class/syntax/valid/grammar-static-private-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-expr-elements-valid-syntax.template
+/*---
+description: Static Private Methods can be named prototype (class expression)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+var C = class {
+  static #prototype() {}
+};
diff --git a/test/language/statements/class/syntax/early-error/grammar-static-async-gen-meth-prototype.js b/test/language/statements/class/syntax/early-error/grammar-static-async-gen-meth-prototype.js
new file mode 100644
index 0000000000..d7f677c87e
--- /dev/null
+++ b/test/language/statements/class/syntax/early-error/grammar-static-async-gen-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-gen-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+/*---
+description: Static Async Generator Methods cannot be named prototype (class declaration)
+esid: prod-ClassElement
+features: [async-iteration, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+class C {
+  static async * prototype() {}
+}
diff --git a/test/language/statements/class/syntax/early-error/grammar-static-async-meth-prototype.js b/test/language/statements/class/syntax/early-error/grammar-static-async-meth-prototype.js
new file mode 100644
index 0000000000..f642d0afd6
--- /dev/null
+++ b/test/language/statements/class/syntax/early-error/grammar-static-async-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-async-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+/*---
+description: Static Async Methods cannot be named prototype (class declaration)
+esid: prod-ClassElement
+features: [async-functions, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+class C {
+  static async prototype() {}
+}
diff --git a/test/language/statements/class/syntax/early-error/grammar-static-gen-meth-prototype.js b/test/language/statements/class/syntax/early-error/grammar-static-gen-meth-prototype.js
new file mode 100644
index 0000000000..986f7f00f9
--- /dev/null
+++ b/test/language/statements/class/syntax/early-error/grammar-static-gen-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-gen-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+/*---
+description: Static Generator Methods cannot be named prototype (class declaration)
+esid: prod-ClassElement
+features: [generators, class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+class C {
+  static * prototype() {}
+}
diff --git a/test/language/statements/class/syntax/early-error/grammar-static-get-meth-prototype.js b/test/language/statements/class/syntax/early-error/grammar-static-get-meth-prototype.js
new file mode 100644
index 0000000000..6f24c3418d
--- /dev/null
+++ b/test/language/statements/class/syntax/early-error/grammar-static-get-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-get-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+/*---
+description: Static Accessor get Methods cannot be named prototype (class declaration)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+class C {
+  static get prototype() {}
+}
diff --git a/test/language/statements/class/syntax/early-error/grammar-static-meth-prototype.js b/test/language/statements/class/syntax/early-error/grammar-static-meth-prototype.js
new file mode 100644
index 0000000000..92ab353af5
--- /dev/null
+++ b/test/language/statements/class/syntax/early-error/grammar-static-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+/*---
+description: Static Methods cannot be named prototype (class declaration)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+class C {
+  static prototype() {}
+}
diff --git a/test/language/statements/class/syntax/early-error/grammar-static-set-meth-prototype.js b/test/language/statements/class/syntax/early-error/grammar-static-set-meth-prototype.js
new file mode 100644
index 0000000000..1de086e4f4
--- /dev/null
+++ b/test/language/statements/class/syntax/early-error/grammar-static-set-meth-prototype.js
@@ -0,0 +1,25 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-set-meth-prototype.case
+// - src/class-elements/syntax/invalid/cls-decl-elements-invalid-syntax.template
+/*---
+description: Static Accessor set Methods cannot be named prototype (class declaration)
+esid: prod-ClassElement
+features: [class]
+flags: [generated]
+negative:
+  phase: parse
+  type: SyntaxError
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+throw "Test262: This statement should not be evaluated.";
+
+class C {
+  static set prototype() {}
+}
diff --git a/test/language/statements/class/syntax/valid/grammar-static-private-async-gen-meth-prototype.js b/test/language/statements/class/syntax/valid/grammar-static-private-async-gen-meth-prototype.js
new file mode 100644
index 0000000000..06b509c97b
--- /dev/null
+++ b/test/language/statements/class/syntax/valid/grammar-static-private-async-gen-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-gen-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template
+/*---
+description: Static Async Generator Private Methods can be named prototype (class declaration)
+esid: prod-ClassElement
+features: [async-iteration, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+class C {
+  static async * #prototype() {}
+}
diff --git a/test/language/statements/class/syntax/valid/grammar-static-private-async-meth-prototype.js b/test/language/statements/class/syntax/valid/grammar-static-private-async-meth-prototype.js
new file mode 100644
index 0000000000..376df2d768
--- /dev/null
+++ b/test/language/statements/class/syntax/valid/grammar-static-private-async-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-async-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template
+/*---
+description: Static Async Private Methods can be named prototype (class declaration)
+esid: prod-ClassElement
+features: [async-functions, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+class C {
+  static async #prototype() {}
+}
diff --git a/test/language/statements/class/syntax/valid/grammar-static-private-gen-meth-prototype.js b/test/language/statements/class/syntax/valid/grammar-static-private-gen-meth-prototype.js
new file mode 100644
index 0000000000..56bb3105ce
--- /dev/null
+++ b/test/language/statements/class/syntax/valid/grammar-static-private-gen-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-gen-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template
+/*---
+description: Static Generator Private Methods can be named prototype (class declaration)
+esid: prod-ClassElement
+features: [generators, class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+class C {
+  static * #prototype() {}
+}
diff --git a/test/language/statements/class/syntax/valid/grammar-static-private-meth-prototype.js b/test/language/statements/class/syntax/valid/grammar-static-private-meth-prototype.js
new file mode 100644
index 0000000000..111315c043
--- /dev/null
+++ b/test/language/statements/class/syntax/valid/grammar-static-private-meth-prototype.js
@@ -0,0 +1,20 @@
+// This file was procedurally generated from the following sources:
+// - src/class-elements/grammar-static-private-meth-prototype.case
+// - src/class-elements/syntax/valid/cls-decl-elements-valid-syntax.template
+/*---
+description: Static Private Methods can be named prototype (class declaration)
+esid: prod-ClassElement
+features: [class-static-methods-private, class]
+flags: [generated]
+info: |
+    Class Definitions / Static Semantics: Early Errors
+
+    ClassElement : static MethodDefinition
+        It is a Syntax Error if PropName of MethodDefinition is "prototype"
+
+---*/
+
+
+class C {
+  static #prototype() {}
+}