Eclipse libs projects setup fix (#42852)

Fallout from #42773 for eclipse users.

libs/core/src/test/eclipse-build.gradle

@@ -2,5 +2,5 @@
 apply from: '../../build.gradle'
 
 dependencies {
-  testCompile project(':libs:core')
+  testCompile project(':libs:elasticsearch-core')
 }

libs/dissect/src/test/eclipse-build.gradle

@@ -3,5 +3,5 @@
 apply from: '../../build.gradle'
 
 dependencies {
-  testCompile project(':libs:dissect')
+  testCompile project(':libs:elasticsearch-dissect')
 }

libs/grok/src/test/eclipse-build.gradle

@@ -3,5 +3,5 @@
 apply from: '../../build.gradle'
 
 dependencies {
-  testCompile project(':libs:grok')
+  testCompile project(':libs:elasticsearch-grok')
 }

libs/nio/src/test/eclipse-build.gradle

@@ -3,5 +3,5 @@
 apply from: '../../build.gradle'
 
 dependencies {
-  testCompile project(':libs:nio')
+  testCompile project(':libs:elasticsearch-nio')
 }

libs/secure-sm/src/test/eclipse-build.gradle

@@ -3,5 +3,5 @@
 apply from: '../../build.gradle'
 
 dependencies {
-  testCompile project(':libs:secure-sm')
+  testCompile project(':libs:elasticsearch-secure-sm')
 }

libs/x-content/src/test/eclipse-build.gradle

@@ -3,5 +3,5 @@
 apply from: '../../build.gradle'
 
 dependencies {
-  testCompile project(':libs:x-content')
+  testCompile project(':libs:elasticsearch-x-content')
 }