tint: Rename ProgramBuilder::Construct() to Call()

Once all ast::Type derived classes are removed, there will be no
distinction between a type initializer / conversion and a function call.

Bug: tint:1810
Change-Id: Ic10fd1a0364a564d24dbe2499af0f1424641596c
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/118980
Auto-Submit: Ben Clayton <bclayton@google.com>
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@chromium.org>
diff --git a/src/tint/transform/multiplanar_external_texture.cc b/src/tint/transform/multiplanar_external_texture.cc
index 6e68428..97d907c 100644
--- a/src/tint/transform/multiplanar_external_texture.cc
+++ b/src/tint/transform/multiplanar_external_texture.cc
@@ -320,17 +320,17 @@
                     "modifiedCoords", b.Mul(b.MemberAccessor("params", "coordTransformationMatrix"),
                                             b.vec3<f32>("coord", 1_a)))));
 
-                stmts.Push(b.Decl(b.Let(
-                    "plane0_dims",
-                    b.Construct(b.ty.vec2<f32>(), b.Call("textureDimensions", "plane0", 0_a)))));
+                stmts.Push(b.Decl(
+                    b.Let("plane0_dims",
+                          b.Call(b.ty.vec2<f32>(), b.Call("textureDimensions", "plane0", 0_a)))));
                 stmts.Push(
                     b.Decl(b.Let("plane0_half_texel", b.Div(b.vec2<f32>(0.5_a), "plane0_dims"))));
                 stmts.Push(b.Decl(
                     b.Let("plane0_clamped", b.Call("clamp", "modifiedCoords", "plane0_half_texel",
                                                    b.Sub(1_a, "plane0_half_texel")))));
-                stmts.Push(b.Decl(b.Let(
-                    "plane1_dims",
-                    b.Construct(b.ty.vec2<f32>(), b.Call("textureDimensions", "plane1", 0_a)))));
+                stmts.Push(b.Decl(
+                    b.Let("plane1_dims",
+                          b.Call(b.ty.vec2<f32>(), b.Call("textureDimensions", "plane1", 0_a)))));
                 stmts.Push(
                     b.Decl(b.Let("plane1_half_texel", b.Div(b.vec2<f32>(0.5_a), "plane1_dims"))));
                 stmts.Push(b.Decl(