Issue 3531. Don't allow using built-in identifier as import prefix

tests/co19/co19-compiler.status

Index: tests/co19/co19-compiler.status
diff --git a/tests/co19/co19-compiler.status b/tests/co19/co19-compiler.status
index 39eee5351c959d9ca7ef83ad2ff5503761a5fc36..6657a4a5d84be15ae154cb7abd3790041e0ed677 100644
--- a/tests/co19/co19-compiler.status
+++ b/tests/co19/co19-compiler.status
@@ -58,18 +58,14 @@ Language/12_Libraries_and_Scripts/2_Imports_A02_t09: Fail # Please triage this f
 Language/12_Libraries_and_Scripts/2_Imports_A02_t10: Fail # Please triage this failure.
 Language/12_Libraries_and_Scripts/2_Imports_A05_t01: Fail # Please triage this failure.
 Language/12_Libraries_and_Scripts/2_Imports_A07_t03: Fail # Please triage this failure.
-Language/12_Libraries_and_Scripts/2_Imports_A07_t09: Fail # Please triage this failure.
 Language/12_Libraries_and_Scripts/3_Includes_A02_t02: Fail # Please triage this failure.
 Language/12_Libraries_and_Scripts/4_Scripts_A01_t16: Fail # Please triage this failure.
 Language/13_Types/3_Type_Declarations/1_Typedef_A07_t01: Fail # Please triage this failure.
 Language/13_Types/3_Type_Declarations/1_Typedef_A07_t02: Fail # Please triage this failure.
 Language/13_Types/3_Type_Declarations/1_Typedef_A07_t03: Fail # Please triage this failure.
 Language/13_Types/3_Type_Declarations/1_Typedef_A07_t04: Fail # Please triage this failure.
-Language/14_Reference/1_Lexical_Rules/1_Reserved_Words_A10_t04: Fail # Please triage this failure.
-Language/14_Reference/1_Lexical_Rules/1_Reserved_Words_A10_t05: Fail # Please triage this failure.
 
 
-Language/03_Overview/1_Scoping_A02_t26: Fail # co19 issue 133
 Language/03_Overview/1_Scoping_A02_t10: Fail # Issue 2382
 Language/03_Overview/1_Scoping_A02_t30: Fail # Issue 3474
 Language/03_Overview/1_Scoping_A02_t31: Fail # Issue 3474
@@ -153,6 +149,11 @@ Language/10_Expressions/28_Identifier_Reference_A04_t06: Fail # Issue 2437
 Language/10_Expressions/28_Identifier_Reference_A05_t08: Fail # Issue 3476
 Language/10_Expressions/28_Identifier_Reference_A05_t09: Fail # Issue 3476
 Language/10_Expressions/28_Identifier_Reference_A05_t10: Fail # Issue 3476
+Language/10_Expressions/28_Identifier_Reference_A06_t09: Fail # co19 issue 140
+Language/10_Expressions/28_Identifier_Reference_A06_t10: Fail # co19 issue 140
+Language/10_Expressions/28_Identifier_Reference_A06_t11: Fail # co19 issue 140
+Language/10_Expressions/28_Identifier_Reference_A06_t12: Fail # co19 issue 140
+Language/10_Expressions/28_Identifier_Reference_A07_t03: Fail # co19 issue 140
 Language/10_Expressions/29_Type_Test_A01_t04: Fail # Issue 2437
 Language/11_Statements/02_Expression_Statements_A01_t05: Fail # Issue 1489
 Language/11_Statements/02_Expression_Statements_A01_t07: Fail # Issue 1489
@@ -176,6 +177,7 @@ Language/13_Types/4_Interface_Types_A10_t09:Fail # co19 Issue 130
 Language/13_Types/4_Interface_Types_A11_t04: Fail # Issue 2495
 Language/13_Types/5_Function_Types_A01_t08:Fail # co19 Issue 130
 
+
 LibTest/core/FallThroughError/FallThroughError_A01_t01: Fail # Issue 1269
 LibTest/core/FallThroughError/toString_A01_t01: Fail # Issue 1269
 LibTest/core/List/every_A03_t01: Skip # status change with --check-only, Promise removed (co19 Issue #79)