[Isolates] StaticVisitor::VisitPointer gets Heap* as additional argument

src/globals.h

Index: src/globals.h
diff --git a/src/globals.h b/src/globals.h
index 445b3a7bf0efe00ae49654aa174e841badfc60bb..82831e27ad34808269e671892e880e3bcfb67aad 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -214,6 +214,12 @@ const intptr_t kMapAlignmentBits = kObjectAlignmentBits + 3;
 const intptr_t kMapAlignment = (1 << kMapAlignmentBits);
 const intptr_t kMapAlignmentMask = kMapAlignment - 1;
 
+// Desired alignment for generated code.
+// Code entry points are aligned to 32 bytes (cache line size in some CPUs).
+const int kCodeAlignmentBits = 5;
+const intptr_t kCodeAlignment = 1 << kCodeAlignmentBits;
+const intptr_t kCodeAlignmentMask = kCodeAlignment - 1;
+
 // Tag information for Failure.
 const int kFailureTag = 3;
 const int kFailureTagSize = 2;
@@ -589,6 +595,10 @@ enum StateTag {
 #define MAP_POINTER_ALIGN(value)                                \
   (((value) + kMapAlignmentMask) & ~kMapAlignmentMask)
 
+// CODE_POINTER_ALIGN returns the value aligned as a generated code segment.
+#define CODE_POINTER_ALIGN(value)                               \
+  (((value) + kCodeAlignmentMask) & ~kCodeAlignmentMask)
+
 // The expression OFFSET_OF(type, field) computes the byte-offset
 // of the specified field relative to the containing type. This
 // corresponds to 'offsetof' (in stddef.h), except that it doesn't