Use multi-catch when possible

compiler/frontend/src/org/jetbrains/kotlin/resolve/calls/inference/ConstraintsUtil.java

@@ -145,10 +145,7 @@ public class ConstraintsUtil {
                     sb.append("\n");
                 }
             }
-            catch (IllegalAccessException e) {
-                sb.append(e.getMessage());
-            }
-            catch (InvocationTargetException e) {
+            catch (IllegalAccessException | InvocationTargetException e) {
                 sb.append(e.getMessage());
             }
         }

compiler/frontend/src/org/jetbrains/kotlin/types/expressions/ExpressionTypingVisitorDispatcher.java

@@ -216,10 +216,7 @@ public abstract class ExpressionTypingVisitorDispatcher extends KtVisitor<Kotlin
                     }
                     return result;
                 }
-                catch (ProcessCanceledException e) {
-                    throw e;
-                }
-                catch (KotlinFrontEndException e) {
+                catch (ProcessCanceledException | KotlinFrontEndException e) {
                     throw e;
                 }
                 catch (Throwable e) {