Merged r15782 into 3.19 branch.

src/full-codegen.h

Index: src/full-codegen.h
diff --git a/src/full-codegen.h b/src/full-codegen.h
index dc5ac6af272e63ead3d922ff44ec2f20d04d60e5..93eedc7327df7416b688115b0095e062a0c651ee 100644
--- a/src/full-codegen.h
+++ b/src/full-codegen.h
@@ -136,7 +136,7 @@ class FullCodeGenerator: public AstVisitor {
 #error Unsupported target architecture.
 #endif
 
-  static const int kBackEdgeEntrySize = 2 * kIntSize + kOneByteSize;
+  static const int kBackEdgeEntrySize = 3 * kIntSize;
 
  private:
   class Breakable;
@@ -648,7 +648,7 @@ class FullCodeGenerator: public AstVisitor {
   struct BackEdgeEntry {
     BailoutId id;
     unsigned pc;
-    uint8_t loop_depth;
+    uint32_t loop_depth;
   };
 
   struct TypeFeedbackCellEntry {