[kotlin] Update test data for 'testConstructorUsageWithConflict()'

Descriptor renderer now adds backticks for names that aren't valid identifiers (see KT-51248). This commit adapts tests in the IDE plugin, so they pass.

GitOrigin-RevId: 0164b22d3b96a15f34c7464f9d73deb1cf8efb30

plugins/kotlin/idea/tests/testData/quickfix/deprecatedSymbolUsage/typeAliases/constructorUsageWithConflict.kt

@@ -4,7 +4,7 @@
 // ACTION: Convert to block body
 // ACTION: Introduce import alias
 // ACTION: Introduce local variable
-// ACTION: Replace usages of '<init>(): Old /* = OldClass */' in whole project
+// ACTION: Replace usages of '`<init>`(): Old /* = OldClass */' in whole project
 // ACTION: Replace with 'NewClass(12)'
 
 @Deprecated("Use NewClass", replaceWith = ReplaceWith("NewClass"))