Squiz/OperatorSpacing: minor tweak to the tests

PR 2515 introduced a new public property to the sniff, including tests, but the property was not reset after that particular test, which means it could affect all tests added after it.

Fixed now.

Author: jrfnl

src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc

@@ -269,7 +269,7 @@ fn&($x) => $x;
 
 // phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments false
 $a  =  3;
-
+// phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments true
 yield -1;
 echo -1;
 $a = -1;

src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.inc.fixed

@@ -263,7 +263,7 @@ fn&($x) => $x;
 
 // phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments false
 $a = 3;
-
+// phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments true
 yield -1;
 echo -1;
 $a = -1;

src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.js

@@ -101,3 +101,4 @@ var foo = bar.map(baz=> baz.length);
 
 // phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments false
 a  =  3;
+// phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments true

src/Standards/Squiz/Tests/WhiteSpace/OperatorSpacingUnitTest.js.fixed

@@ -95,3 +95,4 @@ var foo = bar.map(baz => baz.length);
 
 // phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments false
 a = 3;
+// phpcs:set Squiz.WhiteSpace.OperatorSpacing ignoreSpacingBeforeAssignments true