[0.4.9][JSCRIPT] Fix regression CORE-13810 "Vypress Chat 2.1.9 MSI setup fatal error"

The regression was unhidden by MSI-winesync 1.5.10 almost 7years ago:
8939969e21 == SVN r57070

Finally we can fix it by adding MS enumerator extension to Jscript.
Many thanks to the patches author
Andreas Maier <staubim@quantentunnel.de>
JIRA-nick: andy-123

fix picked from commit 0.4.12-RC-18-g 9ebb42a4c0

It went afterwards into master in slightly modified form as 0.4.13-dev-890-g 83dcae1
But I decided to take the older state from 0.4.12RC, so that I do not have to risk
touching releases/0.4.12 again to sync to "latest&greatest".

Due to the changed PROPF_* defines in jscript.h, I felt most safe by porting back also:
0.4.10-dev-188-g c6f49f5
0.4.10-dev-152-g 3f071cc

dll/win32/jscript/parser.tab.h

@@ -53,33 +53,33 @@ extern int parser_debug;
     kDELETE = 263,
     kDO = 264,
     kELSE = 265,
-    kIF = 266,
-    kFINALLY = 267,
-    kFOR = 268,
-    kIN = 269,
-    kINSTANCEOF = 270,
-    kNEW = 271,
-    kNULL = 272,
-    kRETURN = 273,
-    kSWITCH = 274,
-    kTHIS = 275,
-    kTHROW = 276,
-    kTRUE = 277,
-    kFALSE = 278,
-    kTRY = 279,
-    kTYPEOF = 280,
-    kVAR = 281,
-    kVOID = 282,
-    kWHILE = 283,
-    kWITH = 284,
-    tANDAND = 285,
-    tOROR = 286,
-    tINC = 287,
-    tDEC = 288,
-    tHTMLCOMMENT = 289,
-    kDIVEQ = 290,
-    kDCOL = 291,
-    kFUNCTION = 292,
+    kFUNCTION = 266,
+    kIF = 267,
+    kFINALLY = 268,
+    kFOR = 269,
+    kIN = 270,
+    kINSTANCEOF = 271,
+    kNEW = 272,
+    kNULL = 273,
+    kRETURN = 274,
+    kSWITCH = 275,
+    kTHIS = 276,
+    kTHROW = 277,
+    kTRUE = 278,
+    kFALSE = 279,
+    kTRY = 280,
+    kTYPEOF = 281,
+    kVAR = 282,
+    kVOID = 283,
+    kWHILE = 284,
+    kWITH = 285,
+    tANDAND = 286,
+    tOROR = 287,
+    tINC = 288,
+    tDEC = 289,
+    tHTMLCOMMENT = 290,
+    kDIVEQ = 291,
+    kDCOL = 292,
     tIdentifier = 293,
     tAssignOper = 294,
     tEqOper = 295,