Revert of Version 5.0.71.10 (cherry-pick)

src/arm/code-stubs-arm.cc

Index: src/arm/code-stubs-arm.cc
diff --git a/src/arm/code-stubs-arm.cc b/src/arm/code-stubs-arm.cc
index 9e8364feca34c4593ceffaa63d039f1092623c71..239eddd28efddd577ab0dd07e6425f6780f6ddb0 100644
--- a/src/arm/code-stubs-arm.cc
+++ b/src/arm/code-stubs-arm.cc
@@ -671,19 +671,11 @@
 
   __ bind(&slow);
 
+  __ Push(lhs, rhs);
+  // Figure out which native to call and setup the arguments.
   if (cc == eq) {
-    {
-      FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
-      __ Push(lhs, rhs);
-      __ CallRuntime(strict() ? Runtime::kStrictEqual : Runtime::kEqual);
-    }
-    // Turn true into 0 and false into some non-zero value.
-    STATIC_ASSERT(EQUAL == 0);
-    __ LoadRoot(r1, Heap::kTrueValueRootIndex);
-    __ sub(r0, r0, r1);
-    __ Ret();
+    __ TailCallRuntime(strict() ? Runtime::kStrictEquals : Runtime::kEquals);
   } else {
-    __ Push(lhs, rhs);
     int ncr;  // NaN compare result
     if (cc == lt || cc == le) {
       ncr = GREATER;