Fix 2 fail_compilation tests

Author: ntrel

test/fail_compilation/fail20547.d

@@ -1,11 +1,10 @@
 /*
 TEST_OUTPUT:
 ---
-fail_compilation/fail20547.d(12): Error: cannot create a `string[string]` with `new`
-fail_compilation/fail20547.d(14): Error: cannot create a `string[string]` with `new`
+fail_compilation/fail20547.d(14): Error: cannot implicitly convert expression `new string[string]` of type `string[string]` to `int[string]`
 ---
 */
-
+#line 9
 void main()
 {
     //https://issues.dlang.org/show_bug.cgi?id=11790

test/fail_compilation/misc_parser_err_cov1.d

@@ -10,7 +10,6 @@ fail_compilation/misc_parser_err_cov1.d(31): Error: expression expected, not `)`
 fail_compilation/misc_parser_err_cov1.d(32): Error: `type identifier : specialization` expected following `is`
 fail_compilation/misc_parser_err_cov1.d(33): Error: semicolon expected following auto declaration, not `auto`
 fail_compilation/misc_parser_err_cov1.d(33): Error: found `+` when expecting `(` following `mixin`
-fail_compilation/misc_parser_err_cov1.d(34): Error: cannot create a `char[float]` with `new`
 fail_compilation/misc_parser_err_cov1.d(35): Error: `key:value` expected for associative array literal
 fail_compilation/misc_parser_err_cov1.d(36): Error: basic type expected, not `;`
 fail_compilation/misc_parser_err_cov1.d(36): Error: `{ members }` expected for anonymous class
@@ -44,7 +43,7 @@ void main()
     auto tt = __traits(<o<);
     auto b = is ;
     auto mx1 = mixin +);
-    auto aa1 = new char[float];
+
     aa +=  [key:value, key];
     auto anon1 = new class;
     auto anon2 = new class {};