JS: Remove synthetic locations

javascript/ql/lib/semmle/javascript/dataflow/internal/VariableCapture.qll

@@ -4,7 +4,7 @@ private import semmle.javascript.dataflow.internal.VariableOrThis
 private import codeql.dataflow.VariableCapture
 private import semmle.javascript.dataflow.internal.sharedlib.DataFlowImplCommon as DataFlowImplCommon
 
-module VariableCaptureConfig implements InputSig<js::DbLocation> {
+module VariableCaptureConfig implements InputSig<js::Location> {
   private js::Function getLambdaFromVariable(js::LocalVariable variable) {
     result.getVariable() = variable
     or
@@ -168,7 +168,7 @@ module VariableCaptureConfig implements InputSig<js::DbLocation> {
 
     string toString() { none() } // Overridden in subclass
 
-    js::DbLocation getLocation() { none() } // Overridden in subclass
+    js::Location getLocation() { none() } // Overridden in subclass
 
     predicate hasCfgNode(BasicBlock bb, int i) { none() } // Overridden in subclass
 
@@ -186,7 +186,7 @@ module VariableCaptureConfig implements InputSig<js::DbLocation> {
     override string toString() { result = pattern.toString() }
 
     /** Gets the location of this write. */
-    override js::DbLocation getLocation() { result = pattern.getLocation() }
+    override js::Location getLocation() { result = pattern.getLocation() }
 
     override js::DataFlow::Node getSource() {
       // Note: there is not always an expression corresponding to the RHS of the assignment.
@@ -222,7 +222,7 @@ module VariableCaptureConfig implements InputSig<js::DbLocation> {
 
     override string toString() { result = "[implicit init] " + variable }
 
-    override js::DbLocation getLocation() { result = variable.getLocation() }
+    override js::Location getLocation() { result = variable.getLocation() }
 
     override CapturedVariable getVariable() { result = variable }
 
@@ -242,7 +242,7 @@ module VariableCaptureConfig implements InputSig<js::DbLocation> {
   predicate entryBlock(BasicBlock bb) { bb instanceof js::EntryBasicBlock }
 }
 
-module VariableCaptureOutput = Flow<js::DbLocation, VariableCaptureConfig>;
+module VariableCaptureOutput = Flow<js::Location, VariableCaptureConfig>;
 
 js::DataFlow::Node getNodeFromClosureNode(VariableCaptureOutput::ClosureNode node) {
   result = TValueNode(node.(VariableCaptureOutput::ExprNode).getExpr())

javascript/ql/lib/semmle/javascript/dataflow/internal/VariableOrThis.qll

@@ -25,7 +25,7 @@ class LocalVariableOrThis extends TLocalVariableOrThis {
   }
 
   /** Gets the location of a declaration of this variable, or the declaring container if this is `this`. */
-  DbLocation getLocation() {
+  Location getLocation() {
     result = this.asLocalVariable().getLocation()
     or
     result = this.asThisContainer().getLocation()
@@ -95,7 +95,7 @@ abstract class ThisUse instanceof ControlFlowNode {
   string toString() { result = super.toString() }
 
   /** Gets the location of this use of `this`. */
-  DbLocation getLocation() { result = super.getLocation() }
+  Location getLocation() { result = super.getLocation() }
 }
 
 private predicate implicitThisUse(ControlFlowNode node, StmtContainer thisBinder) {

javascript/ql/lib/semmle/javascript/dataflow/internal/sharedlib/Ssa.qll

@@ -9,7 +9,7 @@ private import codeql.ssa.Ssa
 private import semmle.javascript.internal.BasicBlockInternal as BasicBlockInternal
 private import semmle.javascript.dataflow.internal.VariableOrThis
 
-module SsaConfig implements InputSig<js::DbLocation> {
+module SsaConfig implements InputSig<js::Location> {
   class ControlFlowNode = js::ControlFlowNode;
 
   class BasicBlock = js::BasicBlock;
@@ -47,7 +47,7 @@ module SsaConfig implements InputSig<js::DbLocation> {
   BasicBlock getABasicBlockSuccessor(BasicBlock bb) { result = bb.getASuccessor() }
 }
 
-import Make<js::DbLocation, SsaConfig>
+import Make<js::Location, SsaConfig>
 
 module SsaDataflowInput implements DataFlowIntegrationInputSig {
   private import codeql.util.Boolean