Rename ascii to one-byte where applicable.

src/x64/codegen-x64.cc

Index: src/x64/codegen-x64.cc
diff --git a/src/x64/codegen-x64.cc b/src/x64/codegen-x64.cc
index 7f371b59f67e33cf3cd40d7ac860112eb5165ab4..44e1618c319b5abe542cb183618bb05598523235 100644
--- a/src/x64/codegen-x64.cc
+++ b/src/x64/codegen-x64.cc
@@ -522,7 +522,7 @@ void StringCharLoadGenerator::Generate(MacroAssembler* masm,
   __ j(zero, &seq_string, Label::kNear);
 
   // Handle external strings.
-  Label ascii_external, done;
+  Label one_byte_external, done;
   if (FLAG_debug_code) {
     // Assert that we do not have a cons or slice (indirect strings) here.
     // Sequential strings have already been ruled out.
@@ -537,22 +537,22 @@ void StringCharLoadGenerator::Generate(MacroAssembler* masm,
   STATIC_ASSERT(kTwoByteStringTag == 0);
   __ testb(result, Immediate(kStringEncodingMask));
   __ movp(result, FieldOperand(string, ExternalString::kResourceDataOffset));
-  __ j(not_equal, &ascii_external, Label::kNear);
+  __ j(not_equal, &one_byte_external, Label::kNear);
   // Two-byte string.
   __ movzxwl(result, Operand(result, index, times_2, 0));
   __ jmp(&done, Label::kNear);
-  __ bind(&ascii_external);
-  // Ascii string.
+  __ bind(&one_byte_external);
+  // One-byte string.
   __ movzxbl(result, Operand(result, index, times_1, 0));
   __ jmp(&done, Label::kNear);
 
-  // Dispatch on the encoding: ASCII or two-byte.
-  Label ascii;
+  // Dispatch on the encoding: one-byte or two-byte.
+  Label one_byte;
   __ bind(&seq_string);
   STATIC_ASSERT((kStringEncodingMask & kOneByteStringTag) != 0);
   STATIC_ASSERT((kStringEncodingMask & kTwoByteStringTag) == 0);
   __ testb(result, Immediate(kStringEncodingMask));
-  __ j(not_zero, &ascii, Label::kNear);
+  __ j(not_zero, &one_byte, Label::kNear);
 
   // Two-byte string.
   // Load the two-byte character code into the result register.
@@ -563,9 +563,9 @@ void StringCharLoadGenerator::Generate(MacroAssembler* masm,
                                   SeqTwoByteString::kHeaderSize));
   __ jmp(&done, Label::kNear);
 
-  // ASCII string.
+  // One-byte string.
   // Load the byte into the result register.
-  __ bind(&ascii);
+  __ bind(&one_byte);
   __ movzxbl(result, FieldOperand(string,
                                   index,
                                   times_1,