MIPS64: Fix `[ptr-compr] Make cleared weak reference value pointer compression friendly`

Fix 4001f86a

Change-Id: I8392c1c6c279b51c64d1052992d836939c84ec55
Reviewed-on: https://chromium-review.googlesource.com/c/1325377Reviewed-by: Marja Hölttä <marja@chromium.org>
Commit-Queue: Ivica Bogosavljevic <ibogosavljevic@wavecomp.com>
Cr-Commit-Position: refs/heads/master@{#57346}

src/mips64/macro-assembler-mips64.cc

@@ -4990,7 +4990,7 @@ void MacroAssembler::JumpToInstructionStream(Address entry) {
 
 void MacroAssembler::LoadWeakValue(Register out, Register in,
                                    Label* target_if_cleared) {
-  Branch(target_if_cleared, eq, in.W(), Operand(kClearedWeakHeapObjectLower32));
+  Branch(target_if_cleared, eq, in, Operand(kClearedWeakHeapObjectLower32));
 
   And(out, in, Operand(~kWeakHeapObjectMask));
 }