Add run configuration to run common java backend tests on jdk 8 with jvm target 1.8

.idea/runConfigurations/Codegen_Tests_with_JVM_target_1_8_on_JDK_1_8.xml

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+<component name="ProjectRunConfigurationManager">
+  <configuration default="false" name="Codegen Tests with JVM target 1.8 on JDK 1.8" type="JUnit" factoryName="JUnit">
+    <extension name="coverage" enabled="false" merge="false" sample_coverage="true" runner="idea">
+      <pattern>
+        <option name="PATTERN" value="org.jetbrains.kotlin.codegen.*" />
+        <option name="ENABLED" value="true" />
+      </pattern>
+    </extension>
+    <module name="compiler-tests" />
+    <option name="ALTERNATIVE_JRE_PATH_ENABLED" value="true" />
+    <option name="ALTERNATIVE_JRE_PATH" value="1.8" />
+    <option name="PACKAGE_NAME" value="org.jetbrains.kotlin.codegen" />
+    <option name="MAIN_CLASS_NAME" value="org.jetbrains.kotlin.codegen.CodegenJdkCommonTestSuite" />
+    <option name="METHOD_NAME" value="" />
+    <option name="TEST_OBJECT" value="class" />
+    <option name="VM_PARAMETERS" value="-Dkotlin.test.default.jvm.target=1.8  -ea -XX:+HeapDumpOnOutOfMemoryError -Xmx1024m -XX:+UseCodeCacheFlushing -XX:ReservedCodeCacheSize=128m -Djna.nosys=true" />
+    <option name="PARAMETERS" value="" />
+    <option name="WORKING_DIRECTORY" value="file://$PROJECT_DIR$" />
+    <option name="ENV_VARIABLES" />
+    <option name="PASS_PARENT_ENVS" value="true" />
+    <option name="TEST_SEARCH_SCOPE">
+      <value defaultName="singleModule" />
+    </option>
+    <envs />
+    <patterns />
+    <method />
+  </configuration>
+</component>

compiler/tests/org/jetbrains/kotlin/codegen/CodegenJdkCommonTestSuite.java

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+/*
+ * Copyright 2010-2017 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.jetbrains.kotlin.codegen;
+
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+
+/*This suite is used to run common java-backend tests under jdk 8, jdk 9 with default target 1.8 (and in future 1.9)*/
+@RunWith(Suite.class)
+@Suite.SuiteClasses({
+        BlackBoxCodegenTestGenerated.class,
+        BlackBoxInlineCodegenTestGenerated.class,
+        CompileKotlinAgainstInlineKotlinTestGenerated.class,
+        CompileKotlinAgainstKotlinTestGenerated.class,
+        BlackBoxAgainstJavaCodegenTestGenerated.class
+})
+public class CodegenJdkCommonTestSuite {}