[strong] Implement static restrictions on switch statement

src/preparser.h

Index: src/preparser.h
diff --git a/src/preparser.h b/src/preparser.h
index 0e11e3d94319d23965bb42996baaa51fe76159a2..23f9bb1c11f3c525b1b86394cdc16df1c3f8c4bb 100644
--- a/src/preparser.h
+++ b/src/preparser.h
@@ -1104,6 +1104,10 @@ class PreParserStatement {
     return PreParserStatement(kUnknownStatement);
   }
 
+  static PreParserStatement Terminating() {

[rossberg, 2015/04/14 20:19:49]

...and then we can just rename this to Jump as well.

[conradw, 2015/04/15 11:40:03]

Done.

+    return PreParserStatement(kTerminatingStatement);
+  }
+
   static PreParserStatement FunctionDeclaration() {
     return PreParserStatement(kFunctionDeclaration);
   }
@@ -1139,9 +1143,14 @@ class PreParserStatement {
     return code_ == kFunctionDeclaration;
   }
 
+  bool IsStrongSwitchTerminatingStatement() {
+    return code_ == kTerminatingStatement;
+  }
+
  private:
   enum Type {
     kUnknownStatement,
+    kTerminatingStatement,
     kStringLiteralExpressionStatement,
     kUseStrictExpressionStatement,
     kUseStrongExpressionStatement,