Use less conservative condition when detecting noncharacter unicode symbols

Source/core/inspector/InspectorFrontendHost.cpp

Index: Source/core/inspector/InspectorFrontendHost.cpp
diff --git a/Source/core/inspector/InspectorFrontendHost.cpp b/Source/core/inspector/InspectorFrontendHost.cpp
index d80087eee5a20e0d283812c880571d2d99a7822c..e5ad251973e0220bc18955d97610c95f1774aefe 100644
--- a/Source/core/inspector/InspectorFrontendHost.cpp
+++ b/Source/core/inspector/InspectorFrontendHost.cpp
@@ -165,7 +165,7 @@ static String escapeUnicodeNonCharacters(const String& str)
     StringBuilder dst;
     for (unsigned i = 0; i < str.length(); ++i) {
         UChar c = str[i];
-        if (c > 126) {
+        if (c >= 0xD800) {
             unsigned symbol = static_cast<unsigned>(c);
             String symbolCode = String::format("\\u%04X", symbol);
             dst.append(symbolCode);