Classes: Partial fix for constructor not calling super

src/mips64/full-codegen-mips64.cc

Index: src/mips64/full-codegen-mips64.cc
diff --git a/src/mips64/full-codegen-mips64.cc b/src/mips64/full-codegen-mips64.cc
index 06c3bb45b5c400d7a72a118a69632833e8e21e31..7db287a118c43a0a40058ddfadc4b140bf3724e0 100644
--- a/src/mips64/full-codegen-mips64.cc
+++ b/src/mips64/full-codegen-mips64.cc
@@ -436,7 +436,9 @@ void FullCodeGenerator::EmitReturnSequence() {
       // Here we use masm_-> instead of the __ macro to avoid the code coverage
       // tool from instrumenting as we rely on the code size here.
       int32_t sp_delta = (info_->scope()->num_parameters() + 1) * kPointerSize;
-      CodeGenerator::RecordPositions(masm_, function()->end_position() - 1);
+      if (function()->end_position() != RelocInfo::kNoPosition) {
+        CodeGenerator::RecordPositions(masm_, function()->end_position() - 1);
+      }
       __ RecordJSReturn();
       masm_->mov(sp, fp);
       int no_frame_start = masm_->pc_offset();