file protocol and abs path (#10493)

src/string_immutable.zig

@@ -5084,7 +5084,7 @@ pub inline fn charIsAnySlash(char: u8) bool {
 }
 
 pub inline fn startsWithWindowsDriveLetter(s: []const u8) bool {
-    return s.len >= 2 and s[0] == ':' and switch (s[1]) {
+    return s.len > 2 and s[1] == ':' and switch (s[0]) {
         'a'...'z', 'A'...'Z' => true,
         else => false,
     };