PS: Add argument tests.

Author: MathiasVP

powershell/ql/test/library-tests/ast/Arguments/arguments.expected

@@ -0,0 +1,9 @@
+positionalArguments
+| arguments.ps1:1:5:1:5 | 1 | 0 |
+namedArguments
+| arguments.ps1:2:8:2:8 | 1 | x |
+| arguments.ps1:3:8:3:8 | 1 | x |
+| arguments.ps1:7:8:7:8 | 1 | x |
+| arguments.ps1:7:13:7:13 | 2 | y |
+| arguments.ps1:8:8:8:8 | 1 | x |
+| arguments.ps1:8:13:8:13 | 2 | y |

powershell/ql/test/library-tests/ast/Arguments/arguments.ps1

@@ -0,0 +1,8 @@
+Foo 1
+Foo -x 1
+Foo -x:1
+Foo -x
+
+Bar -x -y
+Bar -x 1 -y 2
+Bar -x:1 -y:2

powershell/ql/test/library-tests/ast/Arguments/arguments.ql

@@ -0,0 +1,5 @@
+import powershell
+
+query predicate positionalArguments(Argument a, int p) { p = a.getPosition() }
+
+query predicate namedArguments(Argument a, string name) { name = a.getName() }

powershell/ql/test/library-tests/ast/parent.expected

@@ -199,6 +199,14 @@
 | Expressions/ExpandableString.ps1:1:23:1:37 | [Stmt] Now | Expressions/ExpandableString.ps1:1:23:1:37 | {...} |
 | Expressions/ExpandableString.ps1:1:23:1:37 | {...} | Expressions/ExpandableString.ps1:1:21:1:38 | $(...) |
 | Expressions/ExpandableString.ps1:1:35:1:37 | Now | Expressions/ExpandableString.ps1:1:23:1:37 | Now |
+| Expressions/MemberExpression.ps1:1:1:2:14 | [synth] pipeline | Expressions/MemberExpression.ps1:1:1:2:14 | {...} |
+| Expressions/MemberExpression.ps1:1:1:2:14 | {...} | Expressions/MemberExpression.ps1:1:1:2:14 | toplevel function for MemberExpression.ps1 |
+| Expressions/MemberExpression.ps1:1:1:2:14 | {...} | Expressions/MemberExpression.ps1:1:1:2:14 | {...} |
+| Expressions/MemberExpression.ps1:1:7:1:8 | x | Expressions/MemberExpression.ps1:1:1:2:14 | {...} |
+| Expressions/MemberExpression.ps1:2:1:2:10 | DateTime | Expressions/MemberExpression.ps1:2:1:2:14 | ... |
+| Expressions/MemberExpression.ps1:2:1:2:14 | ... | Expressions/MemberExpression.ps1:2:1:2:14 | [Stmt] ... |
+| Expressions/MemberExpression.ps1:2:1:2:14 | [Stmt] ... | Expressions/MemberExpression.ps1:1:1:2:14 | {...} |
+| Expressions/MemberExpression.ps1:2:13:2:14 | x | Expressions/MemberExpression.ps1:2:1:2:14 | ... |
 | Expressions/SubExpression.ps1:1:1:1:11 | $(...) | Expressions/SubExpression.ps1:1:1:1:23 | Call to AddDays |
 | Expressions/SubExpression.ps1:1:1:1:23 | Call to AddDays | Expressions/SubExpression.ps1:1:1:1:23 | [Stmt] Call to AddDays |
 | Expressions/SubExpression.ps1:1:1:1:23 | [Stmt] Call to AddDays | Expressions/SubExpression.ps1:1:1:2:21 | {...} |