minor cleanup to previous fix

Move tests to the non UTF file, remove dead code and document
another bugfix

src/pcre2_compile.c

@@ -2786,7 +2786,6 @@ int escape;
 int i;
 BOOL inescq = FALSE;
 BOOL inverbname = FALSE;
-BOOL next_is_literal = FALSE;
 BOOL utf = (options & PCRE2_UTF) != 0;
 BOOL auto_callout = (options & PCRE2_AUTO_CALLOUT) != 0;
 BOOL isdupname;
@@ -2882,16 +2881,6 @@ while (ptr < ptrend)
   thisptr = ptr;
   GETCHARINCTEST(c, ptr);
 
-  /* Handle cases where previous processing has determined that the next
-  character is literal. */
-
-  if (next_is_literal)
-    {
-    PARSED_LITERAL(c, parsed_pattern);
-    next_is_literal = FALSE;
-    continue;  /* Next character */
-    }
-
   /* Copy quoted literals until \E, allowing for the possibility of automatic
   callouts, except when processing a (*VERB) "name".  */
 

src/pcre2_internal.h

@@ -1345,10 +1345,10 @@ mode rather than an escape sequence. It is also used for [^] in JavaScript
 compatibility mode, and for \C in non-utf mode. In non-DOTALL mode, "." behaves
 like \N.
 
-ESC_ub is a special return from check_escape() when, in BSUX mode, \u{ is not 
-followed by hex digits and }, in which case it should mean a literal "u" 
-followed by a literal "{". This hack is necessary for cases like \u{ 12} 
-because without it, this is interpreted as u{12} now that spaces are allowed in 
+ESC_ub is a special return from check_escape() when, in BSUX mode, \u{ is not
+followed by hex digits and }, in which case it should mean a literal "u"
+followed by a literal "{". This hack is necessary for cases like \u{ 12}
+because without it, this is interpreted as u{12} now that spaces are allowed in
 quantifiers.
 
 Negative numbers are used to encode a backreference (\1, \2, \3, etc.) in

testdata/testinput2

@@ -3420,6 +3420,23 @@
 /^\u{7a}/extra_alt_bsux
     zoo 
 
+/\u{2}/B,extra_alt_bsux
+    \x02
+\= Expect no match
+    uu
+
+/\u{}/extra_alt_bsux
+    u{}
+
+/\u{Q12}/extra_alt_bsux
+    --u{Q12}--
+
+/\u{ 12}/extra_alt_bsux
+    --u{ 12}--
+
+/\u{{3}}/extra_alt_bsux
+    --u{{{}--
+
 /(?(?=c)c|d)++Y/B
 
 /(?(?=c)c|d)*+Y/B

testdata/testinput5

@@ -822,18 +822,6 @@
 \= Expect no match
     \x{1bb1}
 
-/\u{}/extra_alt_bsux
-    u{}
-
-/\u{ 12}/extra_alt_bsux
-    --u{ 12}--
-
-/\u{Q12}/extra_alt_bsux
-    --u{Q12}--
-
-/\u{{3}}/extra_alt_bsux
-    --u{{{}--
-
 /\u/utf,alt_bsux
     \\u
 

testdata/testoutput2

@@ -11358,6 +11358,35 @@ No match
     zoo 
  0: z
 
+/\u{2}/B,extra_alt_bsux
+------------------------------------------------------------------
+        Bra
+        \x02
+        Ket
+        End
+------------------------------------------------------------------
+    \x02
+ 0: \x02
+\= Expect no match
+    uu
+No match
+
+/\u{}/extra_alt_bsux
+    u{}
+ 0: u{}
+
+/\u{Q12}/extra_alt_bsux
+    --u{Q12}--
+ 0: u{Q12}
+
+/\u{ 12}/extra_alt_bsux
+    --u{ 12}--
+ 0: u{ 12}
+
+/\u{{3}}/extra_alt_bsux
+    --u{{{}--
+ 0: u{{{}
+
 /(?(?=c)c|d)++Y/B
 ------------------------------------------------------------------
         Bra

testdata/testoutput5

@@ -1744,22 +1744,6 @@ Failed: error 173 at offset 6: disallowed Unicode code point (>= 0xd800 && <= 0x
     \x{1bb1}
 No match
 
-/\u{}/extra_alt_bsux
-    u{}
- 0: u{}
-
-/\u{ 12}/extra_alt_bsux
-    --u{ 12}--
- 0: u{ 12}
-
-/\u{Q12}/extra_alt_bsux
-    --u{Q12}--
- 0: u{Q12}
-
-/\u{{3}}/extra_alt_bsux
-    --u{{{}--
- 0: u{{{}
-
 /\u/utf,alt_bsux
     \\u
  0: u