Remove the static qualifier from functions in header files.

src/x64/assembler-x64.h

Index: src/x64/assembler-x64.h
diff --git a/src/x64/assembler-x64.h b/src/x64/assembler-x64.h
index 4dff7bdc4fd3f679089f418453ae6b6592ae5a51..47d114f6c6bc47207febce7e317cd675bce0ab20 100644
--- a/src/x64/assembler-x64.h
+++ b/src/x64/assembler-x64.h
@@ -45,22 +45,22 @@ namespace internal {
 // Utility functions
 
 // Test whether a 64-bit value is in a specific range.
-static inline bool is_uint32(int64_t x) {
+inline bool is_uint32(int64_t x) {
   static const uint64_t kMaxUInt32 = V8_UINT64_C(0xffffffff);
   return static_cast<uint64_t>(x) <= kMaxUInt32;
 }
 
-static inline bool is_int32(int64_t x) {
+inline bool is_int32(int64_t x) {
   static const int64_t kMinInt32 = -V8_INT64_C(0x80000000);
   return is_uint32(x - kMinInt32);
 }
 
-static inline bool uint_is_int32(uint64_t x) {
+inline bool uint_is_int32(uint64_t x) {
   static const uint64_t kMaxInt32 = V8_UINT64_C(0x7fffffff);
   return x <= kMaxInt32;
 }
 
-static inline bool is_uint32(uint64_t x) {
+inline bool is_uint32(uint64_t x) {
   static const uint64_t kMaxUInt32 = V8_UINT64_C(0xffffffff);
   return x <= kMaxUInt32;
 }