Decrease resolution priority of declarations from kotlin-stdlib-jre7/8

In order to allow "overload resolution ambiguity" when both
kotlin-stdlib-jre7/8 and kotlin-stdlib-jdk7/8 are in the dependencies

compiler/testData/integration/ant/jvm/stdlibJre78AndStdlibJdk78/build.log.expected

@@ -0,0 +1,10 @@
+OUT:
+Buildfile: [TestData]/build.xml
+
+build:
+  [kotlinc] Compiling [[TestData]/main.kt] => [[Temp]/test.jar]
+
+BUILD SUCCESSFUL
+Total time: [time]
+
+Return code: 0

compiler/testData/integration/ant/jvm/stdlibJre78AndStdlibJdk78/build.xml

@@ -0,0 +1,15 @@
+<project name="Ant Task Test" default="build">
+    <taskdef resource="org/jetbrains/kotlin/ant/antlib.xml" classpath="${kotlin.lib}/kotlin-ant.jar"/>
+
+    <target name="build">
+        <kotlinc src="${test.data}/main.kt" output="${temp}/test.jar" nowarn="true">
+            <classpath>
+                <file file="${kotlin.stdlib.jre7.jar}"/>
+                <file file="${kotlin.stdlib.jre8.jar}"/>
+                <file file="${kotlin.stdlib.jdk7.jar}"/>
+                <file file="${kotlin.stdlib.jdk8.jar}"/>
+            </classpath>
+            <compilerarg line="-jvm-target 1.8"/>
+        </kotlinc>
+    </target>
+</project>

compiler/testData/integration/ant/jvm/stdlibJre78AndStdlibJdk78/main.kt

@@ -0,0 +1,15 @@
+import java.util.stream.Stream
+import kotlin.streams.*
+
+// kotlin-stdlib-jdk7
+
+fun testUse(c: AutoCloseable) = c.use {}
+
+// kotlin-stdlib-jdk8
+
+fun testGet(c: MatchGroupCollection) = c.get("")
+
+fun testGetOrDefault(c: Map<out Number, Any>) = c.getOrDefault(42, "")
+fun testRemove(c: MutableMap<out Number, Any>) = c.remove(42, "")
+
+fun testAsSequence(c: Stream<String>) = c.asSequence()