[PSI] do not throw exception on incorrect expression in KtPsiFactory.createExpressionIfPossible

compiler/psi/src/org/jetbrains/kotlin/psi/KtPsiFactory.kt

@@ -69,7 +69,11 @@ class KtPsiFactory @JvmOverloads constructor(private val project: Project, val m
     }
 
     fun createExpressionIfPossible(@NonNls text: String): KtExpression? {
-        val expression = doCreateExpression(text) ?: return null
+        val expression = try {
+            doCreateExpression(text) ?: return null
+        } catch (ignored: Throwable) {
+            return null
+        }
         return if (expression.text == text) expression else null
     }