[gn] Fix no-inline config for V8

BUILD.gn

Index: BUILD.gn
diff --git a/BUILD.gn b/BUILD.gn
index 01d71a1a5ddc4ed653f9f9eb433fcb00d04bec83..2bc49e6d931fdce0234cb612e9d7c21e4f3a871a 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -62,6 +62,9 @@ declare_args() {
   # tools/gen-postmortem-metadata.py for details.
   v8_postmortem_support = false
 
+  # Switches off inlining in V8.
+  v8_no_inline = false
+
   # Similar to vfp but on MIPS.
   v8_can_use_fpu_instructions = true
 
@@ -357,6 +360,13 @@ config("toolchain") {
   } else if (dcheck_always_on) {
     defines += [ "DEBUG" ]
   }
+
+  if (v8_no_inline) {
+    cflags += [
+      "-fno-inline-functions",
+      "-fno-inline",
+    ]
+  }
 }
 
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