Clang-format c/cpp files in test directory (#4192)

This clang-formats c/cpp files in test/ directory, and updates
clang-format-diff.sh so that it does not ignore test/ directory anymore.

bigswitch.cpp is excluded from formatting, because there are big
commented-out code blocks, and apparently clang-format messes up
formatting in them. Also to make matters worse, different clang-format
versions do different things on those commented-out code blocks.

1 files changed, 4 insertions, 9 deletions

diff --git a/test/grow_memory.cpp b/test/grow_memory.cpp
index b8f732f7a..22703e048 100644
--- a/test/grow_memory.cpp
+++ b/test/grow_memory.cpp
@@ -1,20 +1,15 @@
+#include <emscripten.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include <emscripten.h>
 
 volatile int writeOnly;
 
 int main() {
-  EM_ASM({
-    assert(HEAPU8.length === 16*1024*1024);
-  });
+  EM_ASM({ assert(HEAPU8.length == = 16 * 1024 * 1024); });
   for (int i = 0; i < 20; i++) {
     printf("alloc 1MB: %d\n", i);
-    writeOnly = (int)malloc(1024*1024);
+    writeOnly = (int)malloc(1024 * 1024);
   }
-  EM_ASM({
-    assert(HEAPU8.length > 16*1024*1024);
-  });
+  EM_ASM({ assert(HEAPU8.length > 16 * 1024 * 1024); });
   printf("ok.\n");
 }
-