Disallow function declarations in statement positions in harmony mode.

Review URL: http://codereview.chromium.org/8306025

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9657 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/parser.cc

@@ -1334,7 +1334,7 @@ Statement* Parser::ParseStatement(ZoneStringList* labels, bool* ok) {
       //    FunctionDeclaration
       // Common language extension is to allow function declaration in place
       // of any statement. This language extension is disabled in strict mode.
-      if (top_scope_->is_strict_mode()) {
+      if (top_scope_->is_strict_mode() || harmony_scoping_) {
         ReportMessageAt(scanner().peek_location(), "strict_function",
                         Vector<const char*>::empty());
         *ok = false;

src/preparser.cc

@@ -240,7 +240,7 @@ PreParser::Statement PreParser::ParseStatement(bool* ok) {
       i::Scanner::Location start_location = scanner_->peek_location();
       Statement statement = ParseFunctionDeclaration(CHECK_OK);
       i::Scanner::Location end_location = scanner_->location();
-      if (strict_mode()) {
+      if (strict_mode() || harmony_scoping_) {
         ReportMessageAt(start_location.beg_pos, end_location.end_pos,
                         "strict_function", NULL);
         *ok = false;

test/mjsunit/harmony/block-let-declaration.js

@@ -93,24 +93,15 @@ function f() {
   {
     function g1() { }
   }
-  // Non-strict statement positions.
-  if (true) function g2() { }
-  if (true) {} else function g3() { }
-  do function g4() { } while (false)
-  while (false) function g5() { }
-  label: function g6() { }
-  for (;false;) function g7() { }
-  switch (true) { case true: function g8() { } }
-  switch (true) { default: function g9() { } }
 }
 f();
 
 // Test function declarations in statement position in strict mode.
-TestLocalThrows("function f() { 'use strict'; if (true) function g() {}", SyntaxError);
-TestLocalThrows("function f() { 'use strict'; if (true) {} else function g() {}", SyntaxError);
-TestLocalThrows("function f() { 'use strict'; do function g() {} while (false)", SyntaxError);
-TestLocalThrows("function f() { 'use strict'; while (false) function g() {}", SyntaxError);
-TestLocalThrows("function f() { 'use strict'; label: function g() {}", SyntaxError);
-TestLocalThrows("function f() { 'use strict'; for (;false;) function g() {}", SyntaxError);
-TestLocalThrows("function f() { 'use strict'; switch (true) { case true: function g() {} }", SyntaxError);
-TestLocalThrows("function f() { 'use strict'; switch (true) { default: function g() {} }", SyntaxError);
+TestLocalThrows("function f() { if (true) function g() {}", SyntaxError);
+TestLocalThrows("function f() { if (true) {} else function g() {}", SyntaxError);
+TestLocalThrows("function f() { do function g() {} while (false)", SyntaxError);
+TestLocalThrows("function f() { while (false) function g() {}", SyntaxError);
+TestLocalThrows("function f() { label: function g() {}", SyntaxError);
+TestLocalThrows("function f() { for (;false;) function g() {}", SyntaxError);
+TestLocalThrows("function f() { switch (true) { case true: function g() {} }", SyntaxError);
+TestLocalThrows("function f() { switch (true) { default: function g() {} }", SyntaxError);