Merge branch 'qtwebkit-4.6-staging' into qtscript-jsc-backend

Conflicts:
	src/corelib/tools/qregexp.cpp
	src/script/qscriptengine.cpp
	src/script/qscriptvalue.cpp

1 files changed, 5 insertions, 1 deletions

diff --git a/src/3rdparty/webkit/JavaScriptCore/bytecode/CodeBlock.cpp b/src/3rdparty/webkit/JavaScriptCore/bytecode/CodeBlock.cpp
index 5dae952..0cb3813 100644
--- a/src/3rdparty/webkit/JavaScriptCore/bytecode/CodeBlock.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/bytecode/CodeBlock.cpp
@@ -1319,8 +1319,12 @@ CodeBlock::~CodeBlock()
     }
 
     for (size_t size = m_methodCallLinkInfos.size(), i = 0; i < size; ++i) {
-        if (Structure* structure = m_methodCallLinkInfos[i].cachedStructure)
+        if (Structure* structure = m_methodCallLinkInfos[i].cachedStructure) {
             structure->deref();
+            // Both members must be filled at the same time
+            ASSERT(m_methodCallLinkInfos[i].cachedPrototypeStructure);
+            m_methodCallLinkInfos[i].cachedPrototypeStructure->deref();
+        }
     }
 
     unlinkCallers();