Java: Adjust BasicBlock-based qltests.

java/ql/test/library-tests/controlflow/basic/bbStrictDominance.ql

@@ -1,6 +1,7 @@
 import java
 import semmle.code.java.controlflow.Dominance
+import utils.test.BasicBlock
 
 from BasicBlock b, BasicBlock b2
 where b.strictlyDominates(b2)
-select b, b2
+select getFirstAstNode(b), getFirstAstNode(b2)

java/ql/test/library-tests/controlflow/basic/bbSuccessor.ql

@@ -1,5 +1,6 @@
 import java
+import utils.test.BasicBlock
 
 from BasicBlock b, BasicBlock b2
 where b.getASuccessor() = b2
-select b, b2
+select getFirstAstNodeOrSynth(b), getFirstAstNodeOrSynth(b2)

java/ql/test/library-tests/guards/guards.ql

@@ -1,8 +1,9 @@
 import java
 import semmle.code.java.controlflow.Guards
+import utils.test.BasicBlock
 
 from ConditionBlock cb, boolean testIsTrue, BasicBlock controlled
 where
   cb.controls(controlled, testIsTrue) and
   cb.getEnclosingCallable().getDeclaringType().hasName("Test")
-select cb.getCondition(), testIsTrue, controlled
+select cb.getCondition(), testIsTrue, getFirstAstNode(controlled)

java/ql/test/library-tests/guards/guardslogic.ql

@@ -1,9 +1,10 @@
 import java
 import semmle.code.java.controlflow.Guards
+import utils.test.BasicBlock
 
 from Guard g, BasicBlock bb, GuardValue gv
 where
   g.valueControls(bb, gv) and
   g.getEnclosingCallable().getDeclaringType().hasName("Logic") and
   (exists(gv.asBooleanValue()) or gv.isThrowsException() or gv.getDualValue().isThrowsException())
-select g, gv, bb
+select g, gv, getFirstAstNode(bb)

java/ql/test/library-tests/guards/guardspreconditions.ql

@@ -1,9 +1,10 @@
 import java
 import semmle.code.java.controlflow.Guards
+import utils.test.BasicBlock
 
 from Guard g, BasicBlock bb, GuardValue gv
 where
   g.valueControls(bb, gv) and
   g.getEnclosingCallable().getDeclaringType().hasName("Preconditions") and
   (gv.isThrowsException() or gv.getDualValue().isThrowsException())
-select g, gv, bb
+select g, gv, getFirstAstNode(bb)